Both Kodak AZ425 and Panasonic ZS70 have 20.0 MP resolution sensors but Kodak AZ425's sensor is 1/2.3 (6.17 x 4.55 mm ) and Panasonic ZS70's sensor is 1/2.3-inch (6.17 x 4.55 mm ).
Since Panasonic ZS70's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Kodak AZ425.
Below you can see the AZ425 and ZS70 sensor size comparison.
Sensor Size and Resolution Comparison image of Kodak AZ425 and Panasonic ZS70 Cameras
Kodak AZ425 and Panasonic ZS70 have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture.
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Kodak AZ425
or the
Panasonic ZS70 ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(1/2.3 versus 1/2.3-inch),
so compare them at the same framing rather than the same focal length.
Put the same focal length on the smaller sensor and it will show less depth of
field, not more, because it also crops tighter. The calculator shows the
full frame equivalent focal length for each body so you can match the framing.
